26 lines
663 B
Rust
26 lines
663 B
Rust
use std::io;
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use std::path::Path;
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#[cfg(unix)]
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pub fn device_num<P: AsRef<Path>>(path: P) -> io::Result<u64> {
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use std::os::unix::fs::MetadataExt;
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path.as_ref().metadata().map(|md| md.dev())
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}
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#[cfg(windows)]
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pub fn device_num<P: AsRef<Path>>(path: P) -> io::Result<u64> {
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use winapi_util::{file, Handle};
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let h = Handle::from_path_any(path)?;
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file::information(h).map(|info| info.volume_serial_number())
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}
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#[cfg(not(any(unix, windows)))]
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pub fn device_num<P: AsRef<Path>>(_: P) -> io::Result<u64> {
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Err(io::Error::new(
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io::ErrorKind::Other,
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"walkdir: same_file_system option not supported on this platform",
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))
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}
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